Today we’d like to feature a more scientific video by Kevin Garattoni, the Hybrid Librarian. Have there really been Hobbits in the past?! In this video he tells us about 10 types of human species, that are not known to everybody. It’s exciting to watch these examples and wonder, what could have been, if one of these human species could have survived somehow throughout all this time and still be alive with us today. Check out more awesome videos from the Hybrid Librarian on his YouTube channel as well!